EN - 19
Device connections
Notes of connection
● This unit is designed to be used in a vehicle with a 12-volt battery and negative grounding.
Before installing this unit to a recreational vehicle, a bus, or a truck, make sure the battery
voltage is appropriate for this unit to be used, otherwise, install a transformer by professional to
convert the output voltage to 12V.
● To avoid short circuit in the electrical system, ensure that the negative battery cable is
disconnected before installation.
● To prevent short circuit in the wiring and damaging to this unit, secure all wirings with cable
clamp or adhesive tape. Route the wirings in a secured, out of heating place without touching
any moving parts such as gear shift, handbrake, and seat rails to prevent the wiring insulation
being melted / wore off.
● Never pass the yellow power cord through the installation hole into the engine compartment
and connect to the car battery. Otherwise, a high possibility of serious short circuit to the
electrical system may be occurred.
● Replacing a new fuse with 15A rating when the old one is broken, using no fuse or fuse with
improper rating may cause damage to this unit or even fires. If a proper fuse is installed and
electrical problems still occur, please contact with any professional car shops for inquiry.
● DO NOT connect other equipments with the car battery to avoid battery overheating.
● Please make sure all the wiring connections & the cables of the speakers are well-insulated.
Otherwise, this unit may be damaged by short circuit.
● If there is no ACC available, Please connect ACC lead to the power supply with a switch.
● If an external power amplifier is connected, please don’t connect P.CONT lead to the power
lead of the external power amplifier, otherwise, electric spark or other damage may be resulted.
● Never ground the speaker output to prevent the damage to the built-in power amplifier.
● The minimum rating of the speakers connected to this unit is 50W with 4 to 8Ω impedance.
Control cables
Auto brightness control
To avoid the display being too bright at night time, if the headlight cable is connected to ILLUMI,
turning on the headlight will dim the backlight of the TFT LCD and vice versa.
Telephone mute
If the MUTE cable is connected to a car phone, other audio outputs mute when one call is
received by the car phone.
Reverse driving
If a rear view camera is connected with the unit, the playing source switches to CAMERA
automatically when you start reverse driving.
As the reverse driving is done, the playing source switches to the previous.
Parking brake
1. If "PRK SW" cable is connected to hand brake switch, video display on the TFT monitor will be
controlled by this function.
Parking cable function ceases when the playing source is CAMERA.
2. The monitor displays the blue screen with warning information to prevent the driver watching
video contents during driving, but the passengers at the rear seat can watch video contents
normally.
Summary of Contents for RDD 885BTI
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